Regional Differences

There are some slight regional differences between Thai people as they see each other.
Thais from the northwest are seen as the most compassionate and peaceloving.

Thais from the northeast are the poorest on average, and tend to be the most resilient as well as the best labor pool for unpleasant jobs. Many Thais in the northeast are a merge between Thai and Lao (Laotian) culture, and in fact a lot of Lao words are spoken within Thai sentences there.
Thais from the south (down the western peninsula) tend to be more independent minded and a little bit more assertive. This is a long coastline and you can see in their features that there is a lot of immigrant blood in them. Similar things can be said about parts of the southeast, but the southeast is a small part of the population.

Bangkok is populated mostly by people from all over Thailand who came to Bangkok for work or higher education.

In the big city of Bangkok, Thais tend to be much less community oriented, like people in any big city in the world. There is a stark difference between city people and country people in Thailand.